It would be good for Argentina to decentralize, too much is getting sucked into BA at the expense of the rest of the country
Maybe before Menem got rid of all the railroads...
or Milei privatized the 2 lane highways...
In reality, just like Southern California is the largest manufacturing center of the USA, BA is the logical place for industry, logistics, and wholesalers, and in general, a population of a measly 40 million doesnt really require "decentralizing".
People in the country have gone to BA for jobs, education, culture, and purchasing since Argentina was founded as a nation 200 odd years ago, and its unlikely Catamarca or Neuquen is going to rush in and replace it in almost any category.
Assuming there were better, actually maintained large scale controlled access roads, we would see some increase in suburbanisation and the flourishing of smaller towns, but the current government is headed in the exact opposite direction.
Dwight Eisenhower, where are you when Argentina needs you?
(he created the interstate highway system in the United States in the late 1950s, pretty much from whole cloth)